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Jake Pickering, head of agriculture, aquaculture and fisheries at Waitrose, said: "By suspending sourcing of mackerel at Waitrose, we are reinforcing our ethical and sustainable business commitments, acting to tackle overfishing and protect the long-term health of our oceans and this crucial fish."
以研发投入规模为分界线，企业规模同样呈现橄榄球状。在研发投入集中的亿元、千万元区间，由于企业数量较多，出现了远超其他区间的研发强度最高值。
the preposition mid